Product introduction
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Natural Anethol
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Ref No. : HB-N003
Synonyms: Anethole; 4-Propenylanisole
Molecular Formula: C10H12O
Molecular Weight : 148.2
CAS No.: 4180-23-8
Einecs No.: 224-052-0
: 182.60
CoE: 183
GENERAL dESCRIPTION
Appearance: Colorless to faint yellow liquid or white crystalline solid
Odor: Anise-like odor
PHYSICOCHEMICAL PROPERTIES
Assay (GC): ≥99%
Estragole: ≤0.1%
Cis-Anethol: ≤0.2%
Specific gravity @ 25°C: 0.983 ~ 0.988
Refractive index @ 20°C: 1.557 ~ 1.562
Optical rotation @ 20°C: -0.1° ~ + 1°
Freezing point (°C): ≥21
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Anethole is an aromatic, unsaturated ether related to lignols.Anethole is an organic compound that is widely used as a flavoring substance. From the chemical perspective, it is a phenylpropene, a type of aromatic compound that occurs widely in nature, in essential oils. It contributes a large component of the distinctive flavors of anise and fennel (both in the botanical family Apiaceae), anise myrtle (Myrtaceae), liquorice (Fabaceae), and star anise (Illiciaceae). Closely related to anethole is its isomer estragole, abundant in tarragon (Asteraceae) and basil (Lamiaceae), that has a flavor reminiscent of anise. It is a colorless fragrant mildly volatile liquid.Anethole is only slightly soluble in water but exhibits high solubility in ethanol. This difference causes certain anise-flavored liqueurs to become opaque when diluted with water
Production method
There are many kinds of the brain of the brain in the industrial system, and now we introduce some of the following. (1) the star anise oil or anise oil cooling, crystallization, by distillation and recrystallization to alcohol. The distillation of the oil of 230-234 can be collected and the distillate of the distillate is collected.. Or decompression distillation, the collection of 142 (5.60kPa) or 110 (2.7kPa) fraction, that is, the brain of the brain. (2) by heating at a 220-240 for a oxygen group of a methyl oxygen group a. (3) the anethole and caustic heating, isomerization of anethole. (4) by the methylation of propylene. (5) the effect of the G2H5MgX on the generation of the heated water dehydration to the brain of the brain. (6) the ethyl lactate is heated with a sodium acrylate anhydride and sodium propionate.. (7) in anisole and propionaldehyde mixture, 0 DEG C to join concentrated hydrochloric acid and phosphoric acid, the hydrogen chloride gas was saturated, products and pyridine heating off hydrogen chloride, anethole. Can also be used instead of concentrated hydrochloric acid, hydrobromic acid, sodium metal products processing, dehydrobromination to obtain anethole. (8) will of bromine fennel ether prepared Grignard reagent, and allyl bromide reaction to generate methoxy benzene propylene, and heating with potassium hydroxide, isomerization of anethole.
Chemical property
Colorless or yellowish liquid or crystalline. The melting point of 22.5 DEG C, boiling point of 235 DEG C, 81-81.5 DEG C (307Pa), relative density 0.9883 as indicated from (20 DEG C), refractive index 1.56145, flash point 90 DEG C. With chloroform, ether immiscible, soluble in benzene, ethyl acetate, acetone, carbon disulfide, petroleum ether and alcohol, insoluble in water. A special aroma of a sweet, with a sweet smell..
Use
In food, in particular flavor cakes used as fennel flavor and liquorice essence; also used in beverages, is also widely used in apricot, quince, red bayberry, flavors and toothpaste and mouthwash,. In addition, the brain is also used for drug leveling and leveling agent, cosmetics and soap spices, synthetic drugs raw materials and color photographic sensitization, etc.. Anethole as drugs for chemotherapy or radiotherapy of Renvoi's white blood cells to reduce disease and other reasons caused leukopenia has a certain therapeutic effect. The brain of the star is a large proportion of the consumption of the large - Star aldehyde.. In the presence of amino benzene sulfonic acid, anethole (or oil containing anethole) by ozone, nitric acid and potassium permanganate or potassium dichromate sulfuric acid oxidation is anisic aldehyde (methoxy phenyl aldehyde). The relative density 0.9883 (20/4 C), refractive index 1.56145, the flash point of 90 DEG C. With chloroform, ether immiscible, soluble in benzene, ethyl acetate, acetone, carbon disulfide, petroleum ether and alcohol, insoluble in water. A special aroma of a sweet, with a sweet smell..
Used as toothpaste flavor, spices, also used in food, medicine, etc..
